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Finding the Fourth Proportional to 72,086.52, 108,090.90 and 27,724.44

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Solution

The fourth proportional to 72,086.52, 108,090.90 and 27,724.44 is: 41,571.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,086.52 : 108,090.90 = 27,724.44 : x
  2. Step 2: Convert to fraction form
    72,086.52/108,090.90 = 27,724.44/x
  3. Step 3: Cross multiply
    72,086.52x = 108,090.90 × 27,724.44
  4. Step 4: Simplify right side
    72,086.52x = 2,996,759,671.60
  5. Step 5: Solve for x
    x = 2,996,759,671.60/72,086.52
  6. Step 6: Final answer
    x = 41,571.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.